/Engine/Source/Editor/UnrealEd/Public/Kismet2/EnumEditorUtils.h
Check if NewName is a short name and is acceptable as name in given enum
static bool IsProperNameForUserDefinedEnumerator ( const [UEnum](API\Runtime\CoreUObject\UObject\UEnum) * Enum, [FString](API\Runtime\Core\Containers\FString) NewName )